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Book, 2005
Current format, Book, 2005, , Available .
Book, 2005
Current format, Book, 2005, , Available . Offered in 0 more formats
Provides a description of the psittacosaurus, a dinosaur species that lived from about 120 million to 98 million years ago, discusses the history of psittacosaurus discovery and study, and speculates on what life was like for the psittacosaurus during the Cretaceous period.
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